ZyXEL Communications 650 Series Technical Information PDF herunterladen (Seite 128)

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Here are descriptions of each setup item:

Ping of Death (a): Set the threshold of when this DoS prevention mechanism

will be activated. Please check the box of Ping of Death,

and input the frequency of threshold (how many packets

per second, minute, or hour); you can also input the

‘Burst’ value, which means when this number of ‘Ping of

Death’ packet is received in very short time, this DoS

prevention mechanism will be activated.

Discard Ping Check the box to activate this DoS

From WAN (b): prevention mechanism.

Port Scan (c): Many kinds of port scan methods are listed here; please

check one or more DoS attack methods you want to

prevent.

Sync Flood (d): Like Ping of Death, you can set the threshold of when

this DoS prevention mechanism will be activated.

After you finish with all settings, please click ‘Apply’ (e) button and the

following message will be displayed on your web browser:

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ZyXEL Communications 650 Series Technical Information Seite 128